English verb conjugation
OUGHT TO CHALK

Regular verb: chalk - chalked - chalked

Affirmation

Simple form	V-ing form
I ought to chalk you ought to chalk she ought to chalk we ought to chalk you ought to chalk they ought to chalk	I ought to be chalking you ought to be chalking she ought to be chalking we ought to be chalking you ought to be chalking they ought to be chalking
Perfect	V-ing perfect
I ought to have chalked you ought to have chalked she ought to have chalked we ought to have chalked you ought to have chalked they ought to have chalked	I ought to have been chalking you ought to have been chalking she ought to have been chalking we ought to have been chalking you ought to have been chalking they ought to have been chalking

Negation

Simple form	V-ing form
I ought not to chalk you ought not to chalk she ought not to chalk we ought not to chalk you ought not to chalk they ought not to chalk	I ought not to chalking you ought not to chalking she ought not to chalking we ought not to chalking you ought not to chalking they ought not to chalking
Perfect	V-ing perfect
I ought not to have chalked you ought not to have chalked she ought not to have chalked we ought not to have chalked you ought not to have chalked they ought not to have chalked	I ought not to have been chalking you ought not to have been chalking she ought not to have been chalking we ought not to have been chalking you ought not to have been chalking they ought not to have been chalking

Interrogative form

Simple form	V-ing form
ought to I chalk? ought to you chalk? ought to she chalk? ought to we chalk? ought to you chalk? ought to they chalk?	ought to I be chalking? ought to you be chalking? ought to she be chalking? ought to we be chalking? ought to you be chalking? ought to they be chalking?
Perfect	V-ing perfect
ought to I have chalked? ought to you have chalked? ought to she have chalked? ought to we have chalked? ought to you have chalked? ought to they have chalked?	ought to I have been chalking? ought to you have been chalking? ought to she have been chalking? ought to we have been chalking? ought to you have been chalking? ought to they have been chalking?

Interro-negative form

Simple form	V-ing form
ought I not to chalk? ought you not to chalk? ought she not to chalk? ought we not to chalk? ought you not to chalk? ought they not to chalk?	ought I not to be chalking? ought you not to be chalking? ought she not to be chalking? ought we not to be chalking? ought you not to be chalking? ought they not to be chalking?
Perfect	V-ing perfect
ought I not to have chalked? ought you not to have chalked? ought she not to have chalked? ought we not to have chalked? ought you not to have chalked? ought they not to have chalked?	ought I not to have been chalking? ought you not to have been chalking? ought she not to have been chalking? ought we not to have been chalking? ought you not to have been chalking? ought they not to have been chalking?